﻿126 
  CHAS. 
  K. 
  BEAIN. 
  

  

  Remarks. 
  This 
  species 
  resembles 
  T. 
  longisetosa, 
  Newstead, 
  but 
  is 
  easily 
  distinguished 
  

   by 
  the 
  fact 
  that 
  the 
  hairs 
  of 
  the 
  anal 
  ring 
  are 
  of 
  normal 
  length, 
  and 
  the 
  glands 
  of 
  the 
  

   lac-plates 
  are 
  fewer 
  in 
  number 
  and 
  not 
  scattered. 
  

  

  Habitat 
  : 
  On 
  Euclea 
  sp. 
  and 
  other 
  native 
  plants 
  ; 
  very 
  common 
  around 
  Pretoria 
  

   and 
  apparently 
  widespread 
  throughout 
  the 
  Union. 
  

  

  Collection 
  No. 
  : 
  76. 
  

  

  188. 
  TacharcSia 
  albida, 
  Ckll. 
  (Plate 
  ix, 
  fig. 
  211). 
  

  

  Tachardia 
  albida, 
  Ckll., 
  The 
  Entom. 
  xxxiv, 
  p. 
  249, 
  1901. 
  

  

  Professor 
  Cockerell's 
  description 
  is 
  as 
  follows 
  :— 
  

  

  " 
  Forming 
  smooth 
  yellowish- 
  white 
  masses 
  on 
  the 
  twigs 
  ; 
  the 
  extremely 
  dense 
  and 
  

   hard 
  lac 
  of 
  the 
  several 
  individuals 
  running 
  together 
  ; 
  masses 
  up 
  to 
  10 
  mm. 
  diam., 
  

   and 
  30 
  in 
  length. 
  The 
  indi\ 
  r 
  iduals 
  are 
  marked 
  externally 
  by 
  orange 
  patches, 
  each 
  

   presenting 
  a 
  small 
  corrugated 
  or 
  segmented 
  ridge, 
  and 
  an 
  aperture. 
  Cavities 
  for 
  

   females 
  globular 
  to 
  subpyriform. 
  Male 
  scales 
  of 
  the 
  usual 
  elongated 
  form, 
  red, 
  

   with 
  a 
  very 
  short 
  dorsal 
  segmented 
  ridge, 
  about 
  one-third 
  of 
  total 
  lengths 
  of 
  

   scale. 
  

  

  " 
  $. 
  After 
  boiJing 
  in 
  liquor 
  potassae 
  globular, 
  giving 
  a 
  very 
  fine 
  crimson 
  colour. 
  

   Skin 
  after 
  boiling 
  transparent, 
  truncate 
  and 
  caudal 
  processes 
  remaining 
  ferruginous. 
  

   Mounted 
  female 
  on 
  slide 
  about 
  5 
  mm. 
  diameter. 
  Truncate 
  processes 
  (or 
  ' 
  lac 
  

   tubes 
  ') 
  very 
  short, 
  orifices 
  very 
  small 
  and 
  numerous. 
  Spine 
  apparently 
  absent. 
  

   Caudal 
  process 
  peculiar 
  ; 
  transversely 
  oblong 
  or 
  subreniform, 
  with 
  a 
  deep 
  posterior 
  

   notch, 
  on 
  each 
  side 
  of 
  which 
  are 
  two 
  lobules 
  ; 
  lateral 
  hind 
  margins 
  bearing 
  a 
  sharp 
  

   spine 
  ; 
  surface 
  finely 
  reticulated 
  ; 
  anal 
  ring 
  hidden, 
  only 
  the 
  ends 
  of 
  the 
  numerous 
  

   bristles 
  projecting. 
  Spiracles 
  large 
  and 
  well-developed. 
  Mouth-parts 
  well- 
  

   developed, 
  but 
  small, 
  about 
  135^ 
  broad 
  ; 
  ' 
  lobes 
  oraux 
  " 
  (as 
  figured 
  by 
  Targioni- 
  

   Tozzetti 
  in 
  T. 
  lacca) 
  very 
  large. 
  

  

  " 
  Larva 
  in 
  female 
  fusiform, 
  narrow, 
  tapering 
  posteriorly, 
  about 
  560/,« 
  long 
  and 
  

   240 
  broad 
  ; 
  caudal 
  bristles 
  very 
  long." 
  

  

  Habitat 
  : 
  On 
  Acacia 
  karroo, 
  Linn., 
  Verulam, 
  Natal 
  (Fuller 
  No. 
  5), 
  and 
  Pienaars 
  

   River, 
  Transvaal 
  ; 
  collected 
  by 
  the 
  writer, 
  January 
  1917. 
  

  

  Collection 
  No. 
  : 
  72. 
  

  

  Subfamily 
  ? 
  

  

  Genus 
  Halimococcus, 
  Ckll. 
  

  

  Halimococcus, 
  Ckll., 
  The 
  Entom. 
  xxxv, 
  p. 
  15, 
  1902. 
  

  

  Only 
  one 
  species 
  has 
  yet 
  been 
  described 
  i.e., 
  H. 
  lanvpas, 
  Ckll. 
  Professor 
  Cockerell's 
  

   original 
  descriptions 
  of 
  the 
  genus 
  and 
  type 
  species 
  are 
  as 
  follows 
  :— 
  

  

  " 
  A 
  Dactylopiine 
  Coccid 
  enclosed 
  in 
  a 
  horny 
  sac 
  shaped 
  like 
  that 
  of 
  Solenococcus, 
  

   without 
  legs 
  or 
  antennae 
  in 
  the 
  adult. 
  Larva 
  with 
  no 
  rows 
  of 
  dorsal 
  spines, 
  no 
  

   hairs 
  on 
  anal 
  ring, 
  and 
  no 
  caudal 
  tubercles, 
  but 
  four 
  long 
  caudal 
  bristles 
  as 
  in 
  

   Phoenicococcus. 
  Closely 
  related 
  to 
  Phoenicococcus 
  (which 
  lives 
  in 
  Algeria), 
  but 
  

   distinguished 
  by 
  the 
  form 
  of 
  the 
  sac, 
  which 
  exactly 
  imitates 
  that 
  of 
  Solenococcus" 
  

  

  